Zac Efron was spotted out and about this weekend with not one but two leading ladies. First, Zac was seen on a movie date with ex Lily Collins. The two were rumored to be a thing back in 2012, so maybe they're rekindling the flame? Then again, Zac also caught up with former Hairspray co-star Brittany Snow for a fun haunted hayeride that appearing more than just friendly judging by the pices of Zac with his arms wrapped around Britney. Is Zac leaning on these gal pals for support, or is one of them more than just a pal? We'll definitely be watching this celeb love triangle closely!

And in cutest couple ever news, Ariana Grande and The Wanted's Nathan Sykes made another adorbs appearance! This weekend at the premiere of Ariana's show Sam & Cat, Nathan was spotted on the orange carpet supporting his girl. How sweet!

Okay, lot's to talk about, girls!

Were you surprised by Lauren's engagement—and, how amazing is her ring?!? Who do you think Zac should date—Britney or Lily? And are you as obsessed with Ariana and Nathan as we are? Sound off in the comments!